*Description*: Ground (Palomar) image of the Trifid Nebula with location of WFPC2 field Technical facts about this news release: About the Object Object Name: Trifid Nebula, M20, NGC 6514 Object Description: Emission Nebula; HII Region Position (J2000): R.A. 18h 02m 23s.00 Dec. -23° 01' 48".0 Constellation: Sagittarius Distance: Approximately 9,000 light-years (2800 parsecs) Dimensions: This image is roughly 2.5 arcminutes (6.6 light-years or 2.0 parsecs) wide. About the Data Data Description: This image was created from HST data from the following proposal, 6857: J. Trauger (JPL), C. Burrows (STScI), J. Clarke (U. Michigan), D. Crisp (JPL), J. Hoessel and J. Gallagher (U. Wisconsin-Madison), R. Griffiths (JHU), J. Hester (ASU), J. Holtzman (Lowell Obs.), J. Mould (Mt. Stromlo and Siding Spring Obs.), J. Westphal (Caltech). Instrument: WFPC2 Exposure Date(s): September 8, 1997 Exposure Time: 4.1 hours Filters: F502N ([O III]), F547M (StrÔø_Ôø_Ôø_mgren "y"), F656N (H-alpha), F673N ([S II]) About the Image Image Credit: NASA and J. Hester (ASU) Release Date: November 9, 1999 Orientation: The Trifid Nebula: Stellar Nursery Torn Apart By Radiation From Nearby Star [ http://imgsrc.hubblesite.org/hu/db/1999/42/images/a/formats/compass_large_web.jpg ] *News Release Number:*: STScI-1999-42e

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